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Frequency - Wikipedia
Frequency is the number of occurrences of a repeating event per unit of time. It is also referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency.The period is the duration of time of one cycle in a repeating event, so the period is the reciprocal of the frequency. For example, if a newborn baby's heart beats at a frequency of 120 times a ...
National Radio Data - Scanner Frequencies
National Radio Data - is an on-line subscription-based provider of nationwide scanner frequencies, trunked frequencies, ham radio, and mass media for DXing.National Radio Data also provides worldwide airport frequencies, civil aviation registry information, public service information, and more.. Our databases are updated regularly from the FCC, Canadian TAFL and other resources, ensuring the ...
Scanner Frequencies & Codes
Scanner Frequencies & Codes . All New Subscription to Mr. Scanner Database on-line. Get a free copy of Mr. Scanner's Search Engine. We can program your scanner for you
Solfeggio Frequencies : SolAwakening
Solfeggio Frequencies. Vibration is everything. And every vibration has its own frequency. By exposing the mind and body to the Solfeggio frequencies, you can easily achieve a greater sense of balance and deep healing.
xkcd: Frequency
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Ultrasound - Wikipedia
Ultrasound is defined by the American National Standards Institute as "sound at frequencies greater than 20 kHz". In air at atmospheric pressure ultrasonic waves have wavelengths of 1.9 cm or less.. Perception Humans. The upper frequency limit in humans (approximately 20 kHz) is due to limitations of the middle ear. Auditory sensation can occur if high‐intensity ultrasound is fed directly ...
AirNav: Navaid Information
Complete list of current navaids for domestic U. S. flight planning including Lat/Long and all operational & technical characteristics
Marscan Site Opening
For more information re Bill's other life, check here Bill’s Site [Formerly the Maritimes Scanning Site, and commonly known as Marscan] Opening page Last updated Sept 2, 2018 - Scanner Frequencies and Radio ...
The All New Revolutionary Scanner! This true I/Q Scanner is the first scanner to incorporate Software Defined Radio technology to provide incredible digital performance in even the most challenging RF environments.
Is "Serfdom" coming down the road soon? (short film from 1944) The Truth About Money, Banking and the Federal Reserve. Make Mine Freedom (1948 film)